Answer:
2+2= 4 so 2x2=4
Step-by-step explanation:
frsducjnfjweasfredch
Find the value of x. 30 POINTS! *URGENT*
Answer:
[tex] x = 7[/tex]
Step-by-step explanation:
Value of the exterior angle is equal to the addition of the opposite interior angles in a triangle
[tex]19 + 20 = 6x - 3 \\ 39 = 6x - 3 \\ 39 + 3 = 6x \\4 2 = 6x \\ \frac{42}{6} = \frac{6x}{6} \\ x = 7[/tex]
A pitcher coming back from an injury limits the number of pitches thrown in bull pen sessions as shown.
a. Which quantities are proportional?
b. How many pitches that are not curveballs do you think the pitcher will throw in Session 5?
Answer:
a. all of the above are correct
b. The pitcher will throw 30 pitches that are not curveballs.
Step-by-step explanation:
simplify by dividing (-5/8)÷(-3/4)
Answer:
5/6 = 20/24
Step-by-step explanation:
Simplify the following:
((-5)/8)/((-3)/4)
Multiply the numerator by the reciprocal of the denominator, ((-5)/8)/((-3)/4) = (-5)/8×4/(-3):
(-5×4)/(8 (-3))
4/8 = 4/(4×2) = 1/2:
(-5)/(2 (-3))
2 (-3) = -6:
(-5)/(-6)
Multiply numerator and denominator of (-5)/(-6) by -1:
Answer: 5/6
Find the greatest common factor of 7,15, and 21.
Answer:
The common factors for 7,15,21 7 , 15 , 21 are 1 . The GCF (HCF) of the numerical factors 1 is 1 .
the greatest common factor of 7, 15, and 21 is 21.
To find the greatest common factor (GCF) of 7, 15, and 21, we can start by finding the prime factorization of each number:
7 = 1 × 7
15 = 1 × 3 × 5
21 = 1 × 3 × 7
Next, we identify the common prime factors among the numbers, which are 3 and 7. To find the GCF, we take the product of these common prime factors:
GCF(7, 15, 21) = 3 × 7 = 21
Therefore, the greatest common factor of 7, 15, and 21 is 21.
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HELP ME PLEASEEEEEEEEEE
Answer: 7 feet taller than the person.
Step-by-step explanation:
50 POINTS! *URGENT*
Show that Polygon A is congruent to Polygon B.
A. rotate 90 clockwise then translate 4 units to the right.
b. rotate 180
c. reflect across y-axis the rotate 90 clockwise
D. rotate 90 counterclockwise then translate 4 units to the right.
Answer:
When the point is rotated through 90° clockwise about the origin, the point M (h, k) takes the image M' (k, -h). Therefore, the new position of point M (-2, 3) will become M' (3, 2). 2. Find the co-ordinates of the points obtained on rotating the point given below through 90° about the origin in clockwise direction.
option A
Answer:
D. rotate 90 counterclockwise then translate 4 units to the right
There are 90 notebooks and a bear and 30% of the notebooks are orange how many orange notebooks are in the bin
Answer:
27
Step-by-step explanation:
If there are 90 notebooks, and 30% are orange, there would be 27 orange notebooks. 30% of 90 is 27.
Two coins, A and B, each have a side for heads and a side for tails. When coin A is tossed, the probability it will land tails-side up is 0.5. When coin B is tossed, the probability it will land tails-side up is 0.8. Both coins will be tossed 20 times. Let A represent the proportion of times coin A lands tails-side up, and let PB represent the proportion of times coin B lands tails-side up. Is the number of fosses for each coin enough for the sampling distribution of the difference in sample proportions PA-PB to be approximately normal?
a. Yes, 20 tosses for each coin is enough.
b. No, 20 tosses for coin A is enough, but 20 tosses for coin B is not enough.
c. No, 20 tosses for coin A is not enough, but 20 tosses for coin B is enough.
d. No, 20 tosses is not enough for either coin.
e. There is not enough information given to determine it 20 tosses is enough.
Answer:
Is the number of tosses for each coin enough for the sampling distribution of the difference in sample proportions PA-PB to be approximately normal?
b. No, 20 tosses for coin A is enough, but 20 tosses for coin B is not enough.
Step-by-step explanation:
a) Data and Calculations:
The probability of coin A landing tails-side up = 0.5
The proportion of times coin A lands tails-side up (PA) = 20 * 0.5 = 10
Therefore, the probability of coin A landing heads-side up = 0.5 (1 - 0.5)
And the proportion of times that coin A lands heads-side up = 20 * 0.5 = 10.
The proportion on either side is equally distributed.
This is why 20 tosses for coin A is enough, since the sample proportions PA is approximately normal, symmetric, and equally distributed. There will be equal amounts of 10 tosses (0.5 *20) for either heads-side up or tails-side up.
For coin B, the probability of landing tails-side up = 0.8
The proportion of times coin B lands tails-side up (PB) = 20 * 0.8 = 16
Therefore, the probability of coin B landing heads-side up = 0.2 (1 - 0-.8)
The proportion on either side is not equally distributed, but skewed.
This is why 20 tosses for coin B is not enough, since the sample proportions PB is not approximately normal, symmetric, and equally distributed. There will be 16 tosses landing tails-side up (0.8*20) and only 4 tosses landing heads-side up (0.2*20).
The true statement about the sample proportions of coins A and B is (b) No, 20 tosses for coin A is enough, but 20 tosses for coin B is not enough.
The given parameters are:
Coin A
[tex]p = 0.5[/tex] --- the probability of landing tails-side up
[tex]n = 20[/tex] --- number of toss
Coin B
[tex]p = 0.8[/tex] --- the probability of landing tails-side up
[tex]n = 20[/tex] --- number of toss
Start by calculating the expected number of times both coins land on either sides.
For coin A, we have:
Expected number of tails
[tex]Tails = np[/tex]
[tex]Tails = 20 \times 0.5[/tex]
[tex]Tails = 10[/tex]
So, the expected number of heads would be:
[tex]Head = n - Tails[/tex]
[tex]Head = 20 - 10[/tex]
[tex]Head = 10[/tex]
This means that, there will an expected equal amount of outcomes for the heads and tails of coin A.
Hence, 20 tosses is enough for coin A because the proportion is equally distributed and approximately normal.
For coin B, we have:
Expected number of tails
[tex]Tails = np[/tex]
[tex]Tails = 20 \times 0.8[/tex]
[tex]Tails = 16[/tex]
So, the expected number of heads would be:
[tex]Head = n - Tails[/tex]
[tex]Head = 20 - 16[/tex]
[tex]Head = 4[/tex]
This means that, there won't be an expected equal amount of outcomes for the heads and tails of coin B.
Hence, 20 tosses is not enough for coin B because the proportion is neither equally distributed nor approximately normal.
So, the correct option is (b)
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On Roberto's shelf there are:
• 7 mystery books
• 6 science books
• 4 history books
• 3 adventure books
Roberto will randomly choose 1 book to read. What is the probability in decimal form that he will choose a history book?
Answer:
he would have a 20% chance he will pick a history book, so in decimal form it would be .2
Step-by-step explanation:
7+6+4+3=20
20*5=100
5*4=20
SOMEONE HELP ME I REALLH NEED IT Which operation would you do first 5-(5+3) divided by 2
A. Subtract
B.divide
C. Multiply
D. Add
Answer:
d. add
Step-by-step explanation:
im doing a review for my class I've blurred my name but im struggling getting to understand some of these
please help and explain ASAP !!
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Answer:
I did the solution there I hope it helps
tan a =-4/3 a lies in quadrant 2 B=2/3 b lies in quadrant 1
Answer:
m
Step-by-step explanation:
m
Which areas of your body are most flexible
Answer:
muscular area of body are most flexible
Define a variable, write an equation and solve: An investment increased 30% before taxes. $200 was withdrawn to pay taxes and the investor has $1500 remaining. What was the original investment?
Answer:
$1307.69
Step-by-step explanation:
Let the original investment be x.
Note that a 30% increase in a value is equal to multiplying a value by 130% and a withdrawal is to take out money. The final amount is $1500. Let’s write the equation with the information we have.
Equation:
130%x - 200 = 1500
(130/100)x = 1700
x = 1700(100/130) = $1307.69
I hope this helps! :)
what is the percent decrease from 10 to 3
The percentage decrease from 10 to 3 should be considered as the 70%. Here percentage means when we divide numerator by denominator.
Calculation of the percentage:Since there are two numbers i.e. 10 and 3
We need to determine the percentage
So,
Here
[tex]= (10 - 3) / 10\\\\[/tex]
= 70%
hence, The percentage decrease from 10 to 3 should be 70%.
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Draw the image of ABC△ under a translation by 5 units to the left.
If triangle ABC is translated 5 units to the left, the transformation is given by (x, y) ⇒ (x - 5, y)
What is transformation?
Transformation is the movement of a point from its initial location to a new location. Types of transformation are reflection, rotation, translation and dilation.
Translation is the movement of a point either up, down, left or right.
If triangle ABC is translated 5 units to the left, the transformation is given by (x, y) ⇒ (x - 5, y)
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I NEED AN EXPLANATION FAST!
Answer:
l. 60
Step-by-step explanation:
60 + 60 + 60 = 180
a triangle equals 180 degrees
Answer:
60 degrees
Step-by-step explanation:
every angle in a triangle must add to 180 degrees. So 180/3=60
how many nickels are in 126 dollars
Answer:
2,520 nickles in $126
Step-by-step explanation:
126 dollars x 100 cents
= 12,600 cents
then
12,600 cents / 5 cents
= 2,520 nickels
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Answer:
2,520 nickels
Step-by-step explanation:
here i will show you how many nickels are in 126$.
first we will calculate how many cents are in 126$.
126x100, and then divide the result by 5 cents to get the answer.
here is the math to illustrate better
126$ x 100 cents
=12,600
12,600 cents / 5 cents
=2,520
there for the answer to your question "how many nickels are in 126 dollars" is as it follows:
2,520 nickels
Plllzzzz answer this question, if Ronny when 68 miles per hour in his Tesla sports, how long will it be till he gets to his brother's house, his house is 92 miles from him consider- ring the fact that his wheel popped and lost two hours fixing it since he simply could not go that fast he, reduced his speed by 20 mph, how long will it take him to show up.
yes this is on my test
Answer:
the class has 12 girls and 16 boys what is the ratio of the total students to boys in simplest form
In what quadrant is the point (5, −8) located?
A) I
B) II
C) III
D) IV
Answer:
c) third quadrant
Step-by-step explanation:
Answer:
4
Step-by-step explanation:
the quadrants are labeled left to right. Comment if u have any questions :)
John needs to take a taxi in New York. A two mile taxi ride cost $3.90. A five mile taxi ride in
the same taxi cost $7.50. If x represents the miles driven and y represents the cost in dollars,
What is the linear equation that would model the cost of a taxi ride?
han intercont form. vaform *
Answer:
It would be 1.2x+ + 1.5
Step-by-step explanation:
Here's why. Since they are both growing at the same rate and it can't be 1.95 or the second one would be 9.75 you have a starting price for 0 miles that being 1.50 and take the remaining amount and divide
The data {(0, 14), (1, 12), (2, 10), (3, 8), (4, 6)) is:
linear.
nonlinear.
317 multiplied by d
317*d
In 924,130, the 2 is in the what place
Answer:
The hundredth thousands place.I hope this helps. Can you give me brainlest
Step-by-step explanation:
What is the simplified value of the expression below?
-8* (-3)
-24
—11
оооо
Answer:
-8(-3)=24
maybe you could put me as brainliest?
PLEASE ANSWER THIS IS URGENT
Convert the following to slope-intercept form (y=mx+b) 2x - (2y + 4) = 2(4x + 1)
Answer:
i think its 48 but dont trust me im just doing this for points hope you get a good grade on it
Step-by-step explanation:
Angelina went out to eat dinner, and the meal cost $100.00. If Angelina received a 19% discount, what was the total value of the discount?
Answer:
$19
Step-by-step explanation:
100 x 19% = 100 x 0.19 = 19
A 10-ft tree makes an 18-ft shadow. About how tall is a person who makes a 12-ft shadow at the same time?
Answer:
20
Step-by-step explanation:
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Andre needs to buy hamburgers and hot dogs for a picnic. He has only $23.00 to spend and must buy at least 78 hamburgers or hot dogs. A store charges 50.50 per
hamburger and $0.25 per hot dog. Which of the following is a possible way Andre might buy the hamburgers and hot dogs?
Answer:
The answer is 20 hamburgers and 25 hot dogs.
20(.5)+25(.25)<16.5
10+6.25<16.5
16.25<16.5
The budget is $16.50 and $16.25 is $.50 less therefore making it a possible option for Enrique.